These are the facts to rebut just a few of the fallacies I read on a daily basis about our party. The Truth About Yisrael Beytenu Hamad Amar November 8, 2012. Masood Aziz outlines six fallacies they perpetuate about the US engagement in Afghanistan.
The depth at which the disk is no longer visible is taken as a measure of the transparency of the water. This measure is known as the Secchi depth and is related to water turbidity.Since its invention, the disk has also been used in a modified, smaller 20 cm (8 in) diameter, black and white design to measure freshwater transparency. Secchi disk measurement should always be taken off the shady side of a boat or dock between 9 am and 3 pm The period for best results is between 10 am and 2 pm. The same observer should take Secchi depth measurements in the same manner every time.
Unsourced material may be challenged and removed. (April 2016) (Learn how and when to remove this template message) In seismology, the depth of focus or focal depth refers to the depth at which an earthquake occurs. Earthquakes occurring at a depth of less than 70 km (43 mi) are classified as shallow-focus earthquakes, while those with a focal depth between 70 km (43 mi) and 300 km (190 mi) are commonly termed mid-focus or intermediate-depth earthquakes.